Antivibratory support for gas-burners.



Paten'tec, Feb. I2', |901. J. FRANKLIN. ANTIVIBBATRY SUPPORT FOB GASy'BURNERSL (Applicatun led Apr. 6, 1900.)

2 Sheets-Sheet l.

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. (Application filed Apr. 6. 1900.)

(No Model.)

2 Sheets-Sheet 2.

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JOHN FRANKLIN, OF NORWOOD, OHIO.

AhlTlWlBHATOHY SUPPORT FOR GAS-BURNERS.

SPECIFICATION forming part of Letters Patent No. 668,042, dated February12, 1901.

Application filed April 6, 1900. Serial No. 11.848i (No model.)

To UU infront it 7711/7/ concern:

Be it known that. l, JOHN FRANKLIN, a citi- :een of the United States ofAmerica, and a resident of Norwood, in the county of Hamilton and Stateof Ohio, have invented certain new and useful improvements inAntivibratory Supports for Gas-Burners, of which the following is aspecification.

This invention relates To certain improve ments in antivibratorysupports for that class of gas-burners which are provided withincandescent mantles; and the object of the invention is to providesimple and inexpensive supporting means especially adapted for taking upor minimizingl the effects of vibration and sudden jars and shocks, soas to lessen the liabilityT of breakage of the frail incandescent mantlecarried by the burner, and thereby to effect a considerable economy inthe cost of maintaining the burner.

rlhe invention consists in certain novel features of the construction,combination, and arrangement of the several parts of the improvedantivibratory burnersupport whereby certain important advantages areattained and the device is made simpler, cheaper, and otherwise betteradapted and more convenient for use, all as will be hereinafter fullyset forth.

The novel features of the invention will be carefully defined in theclaims.

ln the accompanying drawings,which serve to illustrate myinvention,Figure 1 is a view showing in side elevation a burner having anantivibratory support constructed according to myinvention, thesupporting means being shown in vertical axial section. Fig. 2 is a viewsimilar to Fig. 1, but showing a moditied forni of the improvedantivibratory support in which the `flexible connection between thegas-supply pipe and the burner is omitted. Fig. 3 is a view similar toFig. l, but showing still another embodiment of my invention. Fig. 4 isa perspective View showing the spring-arm employed for sustaining theburner in the construction shown. Fig. 5 is an elevation drawn to asmall scale -and showing still another embodiment of my invention. Fig.6 is an enlarged section taken axially through the device shown in Fig.5. Figa 7 is an enlarged section taken transversely through the supportin the plane indicated by the line ct o, in Fig. 6. Fig. S is a viewshowing one of the non-conducting gaskets or washers detached. Fig. 9 isa View showing the washer or'annulus for binding the flexible diaphragmupon the base or body portion of the support. Fig. lO is a View drawn toa smaller scale and showing the construction of the bumer-sustainingspringarms shown in Figs. l, 2, and 5. Fig. l1 is a view showingdetached the headed plug employed in the construction shown in Figs. 5and 6 for holding the flexible diaphragm to the burnerfitting. Fig. 12is a sectional View showing still another modilied arrangementespecially adapted for use in connection with hanging or suspendedlamps.

Referring first to Fig. 1, l indicates the gas-supply pipe, having acock 2, and 3 indicates the burner, arranged above the saine, beingcarried on the threaded upper end 4 of a fitting' 5, between which andthe cock 2 is arranged the improved antivibratory support, (indicatedasa whole by 6.) The burner 3 may be of any desired kind, since it isevident that the im proved antivibratory support is adapted for use inconnection with various forms of burner. The burner herein shown has atube provided with a gas-passage in which the air and gas are mixed ormingled, the upper part of the passage being made with agradually-increasing diameter, so as to accommodate expansion of therising mixture due to heat from the walls of the tube. rlChis specialform of burner I do not claim herein, nor is the improved antivibratorysupport limited to use in connection with such a burner, since it isevident that the device is equally well adapted for use with othergasburners.

The improved support 6 comprises two parts, the burner-fitting 5, abovementioned, and a base or body portion 7, which is secured to and formssubstantially a continuation of the gas-supply pipe l, and these twoparts are provided with corresponding gaspassages 8 and 9. The base orbody portion 7 is made, as herein shown, in a cup-like form, beingexpanded or dared from its lowerend, where it is provided with a nippleto receive the gas-pipe l, to its upper open end or mouth, where it isprovided with a horizontal encircling flange 11.

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Between the base or body portion 7 and the burner-fitting 5 are extendeda plurality of elastic arms 12, arranged, as herein shown, in two pairsat right angles to each other, the arms of each pair being diametricallyopposite and being integrally connected at their upper parts by annularenlargements 13, centrally perforated, as shown at 14 in Fig. 10, whichis a detail view showing a pair of said arms 12 detached. The arms 12are also perforated at their ends, asshown at 15, for the passage ofscrews 16, by means of which the lower ends of' the spring-arms aresecured to the flange 11 of the base 7.

A gas-tight exible connection is interposed between the two parts 5 and7 of the support, said connection, as shown in Fig. 1, comprising aflexible diaphragm 17, of circular form, held at its edges upon theflange 11 of the base by means of a metal washer or annulus 18. (Shownin detail in Fig. 9.) The annulus 18 is held clamped on the [lange 11 toforma gas-tight joint by means of the screws 16, which hold the lowerends of the spring-arms 12 on the ange 11. The diaphragm 17 may beconstructed of leather, rubber, or other sufficiently flexible material,perforated at its central part for the passage of the lower end of atubular plug or stem 19, the upper end o which is threaded and arrangedto screw into a recess in the tting 5, with the gaspassage 8 of whichits hollow 2O is adapted for communication. The threaded upper end ofthe stem 19 is also passed through the openings 14 oi the enlargements13 of the spring-arms and is also provided with a ange or shoulder 21,between which and the under side of the fitting 5 the said enlargementsare clamped, as shown in Fig. 1, so as to secure the burner on thesupport. The lower end of the stem or plug 19 is also provided with aflange or shoulder 21 and is screw-threaded to receive a nut 22, betweenwhich and said lower flange the edges of the central opening of thediaphragm 17 are clamped in such a way as to produce a tight joint.Washers or gaskets 23, of asbestos or other non-conducting material, asshown in Fig. 8, are provided above and below the diaphragm 17, beingheld on the lower end of the stem 19 to prevent damage to the diaphragmby charring or heating caused by conduction of heat from the burnerdownward.

A chamber 24 is produced in the base 7 beneath the diaphragm to receiveand collect any residuum from the gas and prevent the diaphragm frombecoming inoperative by gumming to the base from the hardening of suchresiduum. The central part of the diaphragm is made sufticiently looseto depend slightly into the chamber 24, as shown at 25, so as to receiveand hold a supply of almondoil, glycerin, or other non-volatile liquidto keep the diaphragm soft and flexible.

The gas-tight connection between the parts of the support is not in allcases absolutely essential to the successful operation of the device andmay in some cases be dispensed with. A construction of this nature isshown in Fig. 2, where the base or body portion 26 of the support is notmade cup-shaped and the lower portions of the spring-arms l2 are clampedthereto by means of a part 27, screwing thereon in a way similar to theclamping of the upper parts of the arms in the construction shown inFig. 1 by means of the stern or plug 19. The part 27 carries aneedie-valve 22, which is arranged to discharge gas into the open lowerend'29 ot' the burner 3, to the bottom ot1 which the upper ends of thespring-arms l2 are secured by soldering or otherwise. rlhere may also bebut one or anj7 desired number of the spring-arms 12, each of which isformed from a flat strip of sheet metal, such as hardened copper, brass,or other material not liable to corrosion. A form is shown in Fig. 3wherein but one spring-arm 12 is provided, having an enlargement 30 atits upper end clamped to the fitting 5 by means of a flanged stem 19 andsecured at its lower end to the flange 11 of the base 7 b v means of ascrew 16.

The construction shown in Figs. 5, G, and 7 is similar to that shown inFig. 1, except that the stem 19 is omitted andl the diaphragm 17 is madein inverted-cup form, being clamped at its central upper part, as shownat 31, to the under side of the ttting 5 by means of a hollow plug 32,(shown in detail in Fig. 11,) said plug being screwed into said fittingand having a head 33 arranged beneath the diaphragm. Non conductingwashers or gaskets 23 are arranged above and below the diaphragm toprevent charring thereof, and the plug 32 also serves to bind the upperends of the spring-arms 12 to the fitting. The base 7 is also providedwith a central tubular stem 34, through which the gas-passage 9 isformed and which serves to carry the gas up across the chamber 24, so asto prevent eddy-currents in the same.

In operation when the improved antivibratory support is in place itsspring-arms 12 effectually prevent damage to the incandescent mantle ofthe burner by minimizing or entirely absorbing vibration and sudden jarsand shocks, which would otherwise tend to crack and damage the mantle,and thereby the life of the mantle is materiallylengthened and animportant economy is etected. Since the spring-arms merely extend acrossthe space separating the adjacent ends of the two parts of which thesupport is formed, it is evident that the adjacent ends of the two partsare heldin substantial alinement, while the necessary movementispermitted in overcoming vibration.

When used, the flexible diaphragm 17 affords an effective seal toprevent leakage of the gas between the base 7 and the burnertting 5 andis of an extremely lasting and inexpensive nature and capable of beingIOO IIO

cesante readily replaced in case it should be damaged.

The improved antivilm'atory support is especially well adapted `for useon street-lamps and in tall buildings, factories, dto., where vibrationquickly wears out the incandescent mantles. For factory-lam ps of thesuspended variety I prefer to employ a modified form of The improvedantivibratory support, such as is shown in the .sectional view, Fig. l2.In this form of the device the gas-supply pipe l depends from theceiling and carries a cock 2, between which and the pipe 35, leading tothe burner, (not showin) the improved antivibratory support is arranged.The support shown in Fig. 12 comprises two metal disks $36, havingbosses 37 for the gas connections and connected by bent metal springsl2, theends of which are secured to the disks Se' by means of screws S8.A cup-shaped base or body portion 7 is provided, having a threaded partSi), screwed in the lov/er disk 3o and provided with a gas-passagecommunicating with the passf ge E) of the stem St of said base. Afitting 5 is also provided above the base and furnished with a threadedpart screwed in the upper disk $56 and having a threaded socket toreceive a hollow plug A diaphragm I7 is extended between the iit- Ting:3 and' the base, being protected at its upper edges by asbestos washersand also by similar washers U at its lower edge, where itis clamped onthe flange 10 of the base. As the heated air and gases from thesuspended lamp pass upward, I also provide a hood or shield el,inclosing the base G and diaphragm 17, to further protect said diaphragmfrom charring or damage, the hood heilig secured to the lower disk andhaving iis upper edge slightly below the upper disk. A chain or chainse2 extend between the disks 36 to prevcntfalling of the lamp in case Thesprings l2 should break.

From the above description it will be seen that the improvedaniivibratory support constructed according to my invention is of anextrem ely simple and inexpensive nature and especially well adapted forthe protection of the incandescent mantle, and it will also be apparentthat the device is capable of some modification without materialdeparture from the principles and spirit of the in vention, and for thisreason I do not wish to be understood as limitiiu;` myself to theprecise form and arrangement of the several parts herein shown.

Having thus described my invention, I claiml. An antivibralory supportfor gas-lmrners and the like comiirising two parts formed withcorresponding gas-passages, a springarm formed of a'strip of flatmaterial having a perforated en largement, a device for clamping saidperforated enlargement to one part of the support and means for securingthe spring-arm to the other part of the support, the central part of thespring-arm being curved outwardly and extended across the space betweensaid two parts of the support, substantially as set forth.

2. A support for gas-burners and the like comprising two parts formedwith corresponding gas-passages, an elastic supporting device secured atits ends to the respective parts and extending across the space betweenthem and adapted to hold one part sustained elas tically above theother, and a flexible gas connection also extended across the spacebetween said two parts, substantially as set forth.

3. A support for gasburners and. the like comprising two parts formedwith corresponding gas-passages, an elastic supporting device secured tothe respective parts and extending across the space between them andadapt ed to hold one part elastically sustained above the other, a`flexible gas connection also extended across the space between the twoparts and having one edge adapted for connection with one part, and adevice having engagement with the other part for holding said connectionthereto, substantially as set forth.

4. An antivibratory support for gas-burn ers and the like comprising twoparts having corresponding gas-passages, a spring-arm secured at one endto one of said parts and ex tended across the space between the twoparts and having at its other end perforation, a hollow plug passedthrough said perforation and engaged with one part of the support tohold the spring-arm thereto, and a flexible gas connection also extendedacross the space between the two parts with one edge secured to one partand its other edge held to the other part by said plug, substantially asset forth.

5. A support for gas-burners and the like comprising two parts havingcorresponding gas-passages,one part being expanded around itsgas-passage, an elastic supportingr device for sustaining one partelastioally above the other, and a 'flexible diaphragm secured at itsedges to the expanded part of the support and having its central partsecured to the other part of the support, substantially as set forth.

6. A support for gas-burners and the like comprising two parts havingcorresponding gas passages, one part being expanded around itsgas-passage, an elastic supporting device for sustaining one partelastically above the other, a flexible diaphragm, and an annulus havingmeans for securing it to the expanded part of the support over the edgesof the diaphragm, the central part of the dia phragm being secured tothe other part of the support, substantially as set forth.

7. In asupport for gas-burners and the like, the combination of acup-shaped base having a gas-passage and adapted for attachment to a`gas-supply pipe, a burner-fitting arranged above said base and alsoprovided with a gaspassage, a flexible diaphragm having its edgessecured to the edges of said cup-shaped base and having a centralopening, means for se- IOO IIO

curing the central part of the diaphragm to the burner fitting with itsopening corresponding with the gas-passage thereof, and means forelastically supporting the burnertting, substantially as set forth.

8. A support for gas-burners and the like comprising two parts held inmovable relation to each other and a flexible diaphragm held at its edgeportion on one part and having at its central portion a connection withthe other part of the support, substantially as set forth.

9. A support for gas-burners and the like comprising two parts held inmovable relation to each other and provided with correspondinggas-passages, one part being expanded around its gas-passage, and aflexible diaphragm held at its edges to said expanded part and having atits central portion a connection with the other part of the support andadapted to prevent the escape of gas between the two parts,substantially as set forth.

l0. An antivibratory support for gas-burners and the like comprising twoparts held in movable relation to each other, a iiexible diaphragm heldat its edge portion on one part and having a central opening, the otherpart of the support having a portion extended through the centralopening of the diaphragm and a nut screwed upon said extended portionfor holding the diaphragm thereto, substantially as set. forth.

11. An antivibratory support for gas-burners and the like comprising aburner-fitting, a tubular plug screwed into said fitting divergentspring-arms held by said tubular plug to the burner-fitting, a part towhich the spring-arms are connected and which is adapted for connectionwith a gas-pipe and has a gas-passage adapted for communication with thebore of the tubular plug and means for preventing the escape of gasbetween the plug and the said part, substantially as set forth.

12. An antivibratory support for gas-burners and the like comprising aburner-fitting, elastic sustaining means for the burner-ntting, a partformed with a gas-passage, a flexible gas connection held to said pa'rtand a tubular plug engaged with the burner-{itting and arranged toconnect both the sustaining means and said gas connection to saidfitting, substantially as set forth.

Signed by me at Cincinnati, Ohio, this 4th day of April, 1900.

JOHN FRANKLIN.

Witnesses:

JOHN ELIAS JONES, M. J. GALLAGHER.

